linux/solaris + how to verify OS (linux / solaris ) creation date

Question

Please advice – how to verify OS (linux / solaris ) installation creation date

which file/packages/other – can be good indication when the operation system was created/installed ?

For example

I installed the linux 5.5 in date 23/10/2012 , How to verify in my linux this date ? ( the same question about solaris 10 )

yes - but my question should be relevant for all Linux versions ( from 5.0 until latest version ) — yael, Nov 27 '12 at 09:44

score 0 · Answer 1 · answered Nov 27 '12 at 09:40

0

try with long listing of /bin /sbin files. check the dates of binaries there, you will get a hint.

I think in Solaris /bin is a link to /usr/bin

anyways listing dates of binaries can turn out to be useful.

answered Nov 27 '12 at 09:40

sandeep.s85

I need absolute solution so I will add the rule in my shell script – yael Nov 27 '12 at 09:45

score 0 · Accepted Answer · edited Mar 20 '17 at 10:04

The best 2 solutions:

Look at your root file system creation. For ext2 and ext3 you should use

dumpe2fs /dev/sdX1 | grep "Filesystem created:"

If you use XFS on solaris you should follow the same approach (probably xfs_db ?)

Find the installer log. there you will find files what are write in the moment of installation. In ubuntu for example I have /var/log/installer/lsb-release and the date of this file shows me the date of system installation.

Solution 1 is the absolute solution.

2 Answers2